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Anatomical Kinesology > Elbow and forearm > Flashcards

Elbow and forearm Flashcards

1
Q

Concentric actions of the biceps brachii

A

Elbow flexion, and forearm supination

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2
Q

Concentric action of the brachialis and brachioradialis

A

Elbow flexion

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3
Q

Concentric action of the pronator teres and pronator quadratus

A

Forearm pronation

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4
Q

Concentric action of the triceps

A

Elbow extension

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5
Q

Concentric action of the Anconeus

A

Elbow extension

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6
Q

Concentric action of the supinator

A

Supination

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7
Q

The elbow joint can be thought of as two interrelated joints: the

A

ulnohumeral and radiohumeral joints

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8
Q

The articulations between the radius and ulna are often referred to as the…

A

forearm
* Proximal radioulnar joint
* Distal radioulnar joint

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9
Q

What are superior to the medial and lateral epicondyles of the humerus

A

The medial and lateral ridges supracondylar formed between the diaphysis and epicondyles

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10
Q

Where is the capitulum

A

The smooth round articular surface just distal to the lateral epicondyle

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11
Q

Where is the trochlea

A

The smooth spool shaped articular surface located medial to the capitulum

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12
Q

Where is the coranoid fossa

A

Located on the anterior humerus between the medial and lateral epicondyles

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13
Q

Where is the radial fossa

A

Located lateral to the coronoid fossa on the anterior humerus

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14
Q

Where is the trochlear notch

A

The large C-shaped notch in the proximal end of the ulna
The trochlear notch articulates with the trochlea of the humerus

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15
Q

Where is the coranoid process

A

The small triangular shaped process on the very anterior portion of the
trochlear notch

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16
Q

Where is the radial notch

A

The notch just lateral to the coronoid process

17
Q

Ulnohumeral joint articulating bones

A

Trochlea of the humerus and trochlear notch of the ulna

18
Q

Ulnohumeral joint Diarthrodial joint subdivision

A

Uniaxial, hinge type synovial jointR

19
Q

Radiohumeral joint articulating bones

A

Head of the radius and Capitulum of the humerus

20
Q

Radiohumeral diarthrodial joint subdivision

A

We will go with biaxial combined hinge and pivot type synovial joint

21
Q

Function of the ulnar (medial) collateral ligament

A

Critical in providing medial (valgus) stability to the elbow joint by limiting abduction of the elbow joint

22
Q

Function of the radial (lateral) collateral ligament

A

Provides lateral (varus) stability to the elbow joint
Limits adduction of the elbow joint

23
Q

What kind of sports is the ulnar collateral ligament usually injured in, and what is the surgery named with a torn UCL?

A

The ulnar collateral ligament is commonly injured in overhead
throwing sports (e.g. baseball)
* The anterior band is the most commonly injured band
* The surgery associated with torn UCL is the “Tommy John” surgery that
you hear a lot about in baseball, especially in pitchers

24
Q

What is the most common injury associated with RCL tears

A

The radial collateral ligament is not commonly injured. If it is injured, it is
usually associated with an elbow dislocation

25
Q

Proximal radioulnar joint articulating bones

A

Head of the radius and Radial notch on the ulna

26
Q

Prox radioulnar joint Diarthrodial joint subdivision

A

Uniaxial, pivot type synovial joint

27
Q

Annular ligament function

A

Holds the head of the radius in the radial notch of the ulna

28
Q

Interosseous membrane function

A

It runs between the radius and ulna and Holds the two structures together
Transmits force from the hand to the two bones

29
Q

Distal radioulnar joint articulating bones

A

Ulnar notch on the radius and the The round head of the ulna

30
Q

Distal radioulnar joint Diarthrodial joint subdivision

A

Uniaxial, pivot type synovial joint

31
Q

2 ligaments of the distal radioulnar joint

A

Dorsal (posterior side of the forearm) radioulnar
Volar (anterior side of the forearm) radioulnar ligaments

Anatomical Kinesology (18 decks)

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